Phenolphthalein Indicator Powder (C₂₀H₁₄O₄)25g
Chemical Properties:
-
Chemical Formula: C₂₀H₁₄O₄
-
Molecular Weight: 318.32 g/mol
-
Appearance: White to slightly pink crystalline powder
-
Solubility: Sparingly soluble in water; highly soluble in ethanol and alkaline solutions
-
pH Transition Range: Colorless in pH <8.2, pink at pH 8.2–10, deep magenta in stronger alkaline conditions
-
Melting Point: 258°C
Description:
Phenolphthalein indicator powder is a fine, white or slightly pink crystalline compound commonly used as a pH indicator in analytical chemistry. It is colorless in acidic solutions but turns pink to deep magenta in alkaline solutions, making it a valuable reagent for acid-base titrations. It is widely applied in laboratories, research, and educational settings for chemical analysis.
